Governor



(No Model.) 2 Sheets-Sheet 1.

J. D. HOBBS.

GOVERNOR.

No. 336,318. Patented Feb. 16, 1886.

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(No Model.) 2 Sheets-Sheet 2.

J. D. HOBBS.

GOVERNOR. Q 7 No. 336,318. Patented Feb. 16, 1886.

T/ZZZfDz e s UNITED STATES PATENT OFFICE.

JOSEPH D. HOBBS, OF JOLIET, ILLINOIS.

GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 336,318, dated February 16, 1886.

Application filed July (5, 1885. Serial No. 170,777.

To all whom it may concern.-

Be it known that I, JOSEPH D. HoBBs, a citizen of the United States of America, residing at Joliet, in the county of .Will and State of Illinois, have invented certain new and useful Improvements in Governors, of which the following is a specification, reference being had therein to the accompanying drawings.

Figure 1 is a side view of the governor connected with a shaft through the medium of a pair of gears, as the governor would appear in position for regulating the speed of said shaft. Fig. 2 is a central cross-sectional view of the governor,taken on line 2 of Fig. 4,1ooking in the direction of the arrow. Fig. 3 is a side plan view of a section of the governor, showing a vane-regulator attachment applied thereto, as the device would appear when applied to a windmill. Fig. 4 is a face plan view of the governor, having certain portions broken away to more clearly show the interior working parts. Fig. 5 is' a perspective view of one of the brake shoes. Fig. 6 is a perspective View of one of the boxes for connecting the brakes to the adjacent working parts through the medium of its extending arm. Fig. 7 is a side View of one of the rolls. Fig. 8 is a perspective View of the stationary flanged brake-hub, against which the brakes impinge to govern the velocity of the governor-shaft.

This invention relates to certain improvements in governors for regulating the speed of any machinery to which it may be attached, and is of the class wherein the centrifugal force developed in weights will retard the velocity or speed of the machine by means of bringing a series of brakes to bear against a stationary part of the governor, and wherein a spring furnishes the centripetal force to relieve the pressure of the brakes, which improvements are fully explained and described in the following specification and claims.

Referring to the drawings, and looking at Figs. 2 and 4, S represents a shaft to which the hub E of the governor is keyed. This hub and the flanges F F, radial spokes R, and rim R are all integral with each other,

(No model.)

forming in this instance one piece of metal, and intended to rotate with said shaft.

H is a stationary hub, having the annular flange T, by means of which it may be secured to a side wall, as shown in Fig. 2, or floor or is provided with a series of rolls, P and P.,

These rolls are held therein by means of their extending axles passing into journals in flange F, and the annular cap-plate F. This capplate is shown in Fig. 4 as being partially broken away to show the rolls and brakeshoes beneath it. The brakeshoes are shown at Z, tapered or wedge-shaped in form, and curved to conform to the contour of hub H, against which they impinge. Each brakeshoe lies between hub H and a pair of said rolls, its head under a smaller roll, P, and its point under a large roll, P. Each brakeshoe has a radial integral arm, B, located about its center, the extending stem B of which extends out through an opening in flange Finto a box, 0. A nut, X, on said stem furnishes means for securing said stem in said box, and for setting the brake-shoes to or from hub H, as may be desired. Fig. 5 shows one of said brakes with its arm and stem, as it would appear detached from the machine, and Fig. 6 shows the box 0 in which said stem is held. Said boxes 0 are secured between a pair of annular partially-toothed plates 0 C, which are concentric with and located around the exterior of flange Fone on eitherside of the spokes R and are held together by means of bolts or rivets passing through them and through each one of said boxes 0 located between them. Each spoke It has attached to its side, by means of a pivot, V, on which it swings, a toothed segment, V, set so its teeth will intermesh with the teeth of one or both of the toothed plates 0 O, as shown in Fig. 4. These toothed segments have the integralarmsL, adapted to bear the sliding weights W, When shaft S rotates, the centrifugal force developed will throw said weights and the arms on which they are placed outward, the efl'ect of which will be to rotate plates 0 Qon flange Fto some extent,

and,through the medium ofarms B B, move the brake-shoes forward so they will wedge between hub H,which is stationary, and the rolls 1? P, thereby bringing great frictional contact to bear on said hub, and thereby retard and controlthespeedofsaidshaft. The coil-spring 15, located between one of thespokes and the lug t of arm L, furnishes the centripetal force to collapse said weigh ts and withdraw the brakeshoes Z from between hub H and rollsP P, to relieve said hub from the frictional bearing of said brakes, so that by this means a uniform speed of said shaft may be automatically obtained, and its speed increased or diminished by means of setting the weights WV along on their armsLat any pointin either direction,the scale-marks thereonindicating where to set them to obtain a given speed.

Fig. 1. shows how the device maybe applied to any shalt. In said figure a gear, m, is shown keyed to hub F, and the governor set so said gear may intermesh with a gear, in, on shaft S. The governor may be used as the hub or spider of a windmill. In such case the vanearms maybe inserted inthe holes h of the rim R, as shown in Fig. 1, and vanes located between said arms may be turned in or out of the wind through the medium of the shaft d, attached as shown in Fig. 3, the inner end of said shaft d being boxed to flange F and the outer endto rim R. A pinion, d, located on said shaft near its inner end, may intermesh with a row of cogteeth on the side of plate 0, so that when it partially rotates it will rotate shaft d, which may be connected by means of its crank d on its outer end to the vanes (not shown) to open and close them, and thus regulate the speed of the mill, the same as the device may regulate the speed of any other ma chinery to which it may be attached. The

concave faces of the brake-shoes are provided with linings Z, (shown in Fig. 5,) that may be replaced when worn out.

The whole device forms a very effective, inexpensive, and durable speed-governor for regulating the speed of any machinery to which it may be applied.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows, to wit:

1. The governor described and shown, consisting of the combination of the shafts, hub E, having the flanges F F, spokes R, and rim R, rolls P P, wedge-shaped brake-shoes Z, having the arms B B, boxes 0. annular toothed plates 0 O,toothed segments V, having the arms L, and weights W, adapted to be adjustable thereon, annular plate F, and stationary hub H, all arranged to-operate substantially as and for the purpose set forth.

2. In the speed governor shown and de scribed, the combination of the toothed segments V, having the arms L and adjustable we ghts W, annular toothed plates 0 O, brakeshoes Z, having the arms B B, connecting them with said plates, rolls Pand P, and stationary hub H, all arranged to operate substantiall; as and for the purpose set forth.

3. In the speed -governor shown and described, the combination of the wedge-shaped brake-shoes with the stationary hub, the hub fixed on the shalt passing through said stationary hub, and the means, substantially as shown-and described, foroperating said brakeshoes, for the purpose set forth.

JOSEPH D. HOBBS.

Witnesses:

THOS. H. HUTOHINS, WM. J. HUTOHINS. 

